| Electronics > Projects, Designs, and Technical Stuff |
| EMI pickup device (mailbag) |
| (1/1) |
| SGI:
Hello Dave's aficionados! A tough question for you... Once upon a time in the Mailbag section somebody sent in an homebrew device which only purpose was... picking up EMI from electric/electronic appliances! Sorry I'm unable to provide any more info... I just remember that this cute gadget could tune in on EMI by swiping it all over the device under test! I'm into electronic music and from time to time - in my earphones - I can barely hear this noises that sometimes has excellent rhytmical features! Unfortunately I can't amplify them enough to be usable in my "choons"! Sounds weird, huh? :-/O I'd love to buy the kit to build that!! Have a nice day, Francesco |
| frozenfrogz:
H-field probe into a suitable instrumentation amplifier maybe? Check Daves videos from one / two weeks ago where he DIYs one of those from coax and recommends a decently cheap amp. |
| SGI:
I'll check that! Maybe Dave himself would remember? Or the creator of the instrument?? Cheers |
| magic:
Frankly, you could just record it from the headphone jack of whatever device you have which picks it up. |
| Fire Doger:
https://www.eevblog.com/forum/blog/eevblog-1178-build-a-$10-diy-emc-probe/ Are you referring to noises similar with the sounds made when you make a call near a cheap speaker? |
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